EP0038927B2 - Verfahren und Vorrichtung zum Ausregulieren von Titerschwankungen eines Faserbandes - Google Patents

Verfahren und Vorrichtung zum Ausregulieren von Titerschwankungen eines Faserbandes Download PDF

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Publication number
EP0038927B2
EP0038927B2 EP81101903A EP81101903A EP0038927B2 EP 0038927 B2 EP0038927 B2 EP 0038927B2 EP 81101903 A EP81101903 A EP 81101903A EP 81101903 A EP81101903 A EP 81101903A EP 0038927 B2 EP0038927 B2 EP 0038927B2
Authority
EP
European Patent Office
Prior art keywords
controller
speed
computer
voltage
titer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP81101903A
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German (de)
English (en)
French (fr)
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EP0038927B1 (de
EP0038927A1 (de
Inventor
Hanspeter Meile
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
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Filing date
Publication date
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Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Priority to AT81101903T priority Critical patent/ATE6947T1/de
Publication of EP0038927A1 publication Critical patent/EP0038927A1/de
Application granted granted Critical
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Publication of EP0038927B2 publication Critical patent/EP0038927B2/de
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/32—Regulating or varying draft
    • D01H5/38—Regulating or varying draft in response to irregularities in material ; Measuring irregularities
    • D01H5/42—Regulating or varying draft in response to irregularities in material ; Measuring irregularities employing electrical time-delay devices

Definitions

  • Regulating sections are already known in which a measuring device measures titer deviations of the strip at the end of the section, compares them with a setpoint value, and supplies the actuator with correction commands for detected deviations. This then changes the drawing-in speed of the drafting system and thus the main draft until the band number (titer) corresponds to the target value. Since the belt runs through the measuring element after the regulation has been delayed, the correction effect is automatically checked continuously. Such closed control loops guarantee excellent band uniformity (USTER NEWS, Bulletin No. 24, October 1976, page 1).
  • an I-controller which is matched to the operating speed, supplies a signal representative of the sliver thickness deviations, which has a signal which is dependent on the outlet speed of the Fiber band derived voltage signal is multiplied so as to obtain a control variable matched to the respective outlet speed.
  • the controller is switched off, whereby it is ensured that the sliver thickness deviation signal which is last present at the output of the controller is stored and determines the delay of the drafting system both during shutting down and also during the subsequent startup.
  • a device for producing a uniform textile sliver is already known (DE-AS 2543839), in which a sliver supplied by a card is fed to a receiving device which is driven independently of the card.
  • a regulating drafting device is arranged between the card and the receiving device, which has a pair of measuring rollers and an independently driven pair of drawing rollers, one measuring roller of the pair of measuring rollers being driven by the card and the other measuring roller being deflectable in accordance with the change in thickness of the sliver guided by the measuring rollers.
  • the deflection of the measuring roller is used to control the drive speed of the pair of stretching rollers and the take-up device.
  • the sliver thickness signal is passed through a multiplier, to which a signal representative of the speed of the card is also fed.
  • This is a sliver thickness control that works depending on the fluctuations in the thickness of the sliver fed. Since the titer is measured in front of the drafting system, any irregularities that occur within the drafting system cannot be corrected. So there is not a rule problem, but a tax problem.
  • This pair of measuring rollers can consist of the driven roller 11 having a groove 13 and the complementary non-driven counter roller 12 which engages in the groove 13.
  • the distance D between the pairs of rollers 7 and 11, 12 is approximately 10 mm in the lines which are common today. From there, the belt 10 arrives by means of a turntable 14 for storage in the can 15 placed underneath. This can be driven in rotation or stationary.
  • the structure of the controller 36 can be seen in FIG. 2. It consists of a slow PI controller 49, switchable for the stop-start phase, and from a fast PI controller 50, switchable for the normal operating phase.
  • the controller 49 has the following parameters: for an amplifier stage 51 for the P component: for an amplifier stage 52 for the I component: and controller 50 the parameters: for an amplifier stage 53 for the P component: for an amplifier stage 54 for the I component:
  • the device works as follows: in the multiplier 41, by multiplying the two voltage signals supplied by lines 40 and 42, the manipulated variable y required for regulating the titre fluctuations of the fiber sliver 10 is continuously determined, which is fed to the actuator 48, which in turn is supplied via the differential gear 22 has a corrective effect on the speed of the drafting rollers 2, 3, 5 and 6, so that fluctuations in the titre in the strip to be stretched are continuously adjusted until the desired value is reached.
  • the main drive motor 16 accelerates from standstill to its constant operating speed n, to which n 17 is in a fixed ratio given by change gears (not shown).
  • the motor control 29 is provided with a time switch device (not shown), as a result of which the control circuit is switched on when the main motor 16 is switched on and is only switched off again when the main motor 16 is at a standstill.
  • the required speed change of the DC motor 25 is automatically proportional to the titer deviation and proportional to the speed of the strip 10 when starting up and coasting down, that is, the speed at which the strips 1 run in changes in proportion to the speed of the strip 10, and thus the main delay is as desired , regardless of the speed n 17 , the control parameters change automatically when starting up from sluggish to quick and vice versa when turning off.
  • the controller is optimally set for every delivery speed without manual intervention. Since starting and stopping can be mastered independently of the speed of the drafting rollers, the starting and stopping processes can be carried out slowly (ie per 5-10 seconds, corresponding to a tape exit speed of up to 800 m / min). This leads to a very significant reduction in mechanical stress due to the absence of abrupt braking and starting up the machine and to a reduction in the risk of belt breakage.
  • a peripheral board 67 consists of an analog-digital converter (not shown) (e.g. Burr Brown Type ADC 85-12) for the input of the analog actual value signal (line 32) from the signal converter 31, a circuit (not shown) for Reading in digital data (e.g.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP81101903A 1980-03-28 1981-03-14 Verfahren und Vorrichtung zum Ausregulieren von Titerschwankungen eines Faserbandes Expired EP0038927B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81101903T ATE6947T1 (de) 1980-03-28 1981-03-14 Verfahren und vorrichtung zum ausregulieren von titerschwankungen eines faserbandes.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH245980 1980-03-28
CH2459/80 1980-03-28

Publications (3)

Publication Number Publication Date
EP0038927A1 EP0038927A1 (de) 1981-11-04
EP0038927B1 EP0038927B1 (de) 1984-04-04
EP0038927B2 true EP0038927B2 (de) 1989-05-17

Family

ID=4234301

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81101903A Expired EP0038927B2 (de) 1980-03-28 1981-03-14 Verfahren und Vorrichtung zum Ausregulieren von Titerschwankungen eines Faserbandes

Country Status (9)

Country Link
US (1) US4369550A (zh)
EP (1) EP0038927B2 (zh)
JP (1) JPS56148920A (zh)
AT (1) ATE6947T1 (zh)
BR (1) BR8101861A (zh)
DE (1) DE3162923D1 (zh)
ES (1) ES8301507A1 (zh)
HK (1) HK60785A (zh)
IN (1) IN154205B (zh)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3205880A1 (de) * 1982-02-18 1983-08-25 Zinser Textilmaschinen Gmbh, 7333 Ebersbach Streckwerk fuer eine spinnereimaschine
EP0141505B1 (en) * 1983-09-05 1988-07-20 Chubu Seiko Co. Ltd. Device for automatically controlling the draft in a spinning machine
CH668781A5 (de) * 1984-09-25 1989-01-31 Zellweger Uster Ag Verfahren und vorrichtung zur optimierung des streckprozesses bei regulierstrecken der textilindustrie.
IT1227771B (it) * 1986-07-04 1991-05-06 Zinser Textilmaschinen Gmbh Procedimento e dispositivo per regolare lo stiro di un nastro di fibre in una macchina tessile.
DE3635341A1 (de) * 1986-10-17 1988-04-28 Zinser Textilmaschinen Gmbh Vorrichtung zur regulierung des verzugs eines faserbands bei einer textilmaschine
US5067202A (en) * 1989-07-26 1991-11-26 Maschinenfabrik Rieter Ag Method of maintaining a predetermined quantity of sliver in a card and/or drawframe
US5248925A (en) * 1989-07-31 1993-09-28 Rieter Machine Works, Ltd. Drafting arrangement with feedback drive groups
US5509179A (en) * 1990-06-25 1996-04-23 Mondini; Giancarlo Autoleveller draw frame having process feed back control system
CH683535A5 (de) * 1990-07-13 1994-03-31 Rieter Ag Maschf Streckwerkantrieb.
DE4215682B4 (de) * 1991-06-04 2004-07-22 Rieter Ingolstadt Spinnereimaschinenbau Ag Verfahren und Vorrichtung zur Korrektur des Reguliereinsatzpunktes und der Regulierintensität
EP0571570A1 (de) * 1991-12-09 1993-12-01 Maschinenfabrik Rieter Ag Kämmaschine
CH685164A5 (de) * 1992-03-05 1995-04-13 Zellweger Uster Ag Verfahren und Vorrichtung zur Regelung des Verzugs eines Streckwerks.
DE4219777A1 (de) * 1992-06-17 1993-12-23 Rieter Ingolstadt Spinnerei Verfahren und Vorrichtung zur Signalanalyse einer Regulierstrecke
DE4301953C2 (de) * 1993-01-25 1994-12-15 Rieter Ingolstadt Spinnerei Verfahren zum Einstellen und Verbinden von Streckwerken und Strecke
DE4307839A1 (de) * 1993-03-12 1994-09-15 Rieter Ingolstadt Spinnerei Verfahren und Vorrichtung zur automatischen Einstellung der Drehzahlverhältnisse an einer Strecke
DE19529753B4 (de) * 1995-08-12 2005-11-17 Rieter Ingolstadt Spinnereimaschinenbau Ag Verfahren zur Gewährleistung eines exakten Regeleinsatzes für den Verzug eines Faserverbandes einer Vorspinnereimaschine und Vorrichtung zur Durchführung
US6581248B1 (en) * 1997-01-23 2003-06-24 Maschinenfabrik Rieter Ag Carding machine with drawing rollers at the outlet
EP1009870B2 (de) † 1997-09-01 2008-09-17 Maschinenfabrik Rieter Ag Reguliertes streckwerk
EP1086264B1 (de) * 1998-06-12 2002-10-30 Maschinenfabrik Rieter Ag Regulierstreckwerk
DE19954258A1 (de) * 1999-11-11 2001-05-17 Truetzschler Gmbh & Co Kg Vorrichtung zur elektronischen Steuerung von Spinnereimaschinen, insbesondere Spinnereivorbereitungsmaschinen
KR100653840B1 (ko) 2006-04-28 2006-12-05 장중원 섬유 드리프팅 장치
CN115787154A (zh) * 2022-12-21 2023-03-14 沈阳宏大华明纺织机械有限公司 一种自调匀整并条机、控制方法及相关设备

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1685627A1 (de) * 1967-05-13 1971-09-09 Zinser Textilmaschinen Gmbh Verfahren und Vorrichtung zur Regelung der Bandstaerke von Faserbaendern
US3822590A (en) * 1972-05-01 1974-07-09 Maremont Corp Textile sliver unevenness detecting
US3938223A (en) * 1975-01-06 1976-02-17 Fiber Controls Corporation Auto leveler
DE2544029A1 (de) * 1975-10-02 1977-04-14 Schubert & Salzer Maschinen Verfahren und vorrichtung zum selbsttaetigen vergleichmaessigen von vliesen, faserbaendern, vorgarnen u.dgl. durch verziehen
DE2657603A1 (de) * 1976-12-18 1978-06-22 Truetzschler & Co Geraet zum messen eines faserbandes
DE2704241C3 (de) * 1977-02-02 1980-09-04 Truetzschler Gmbh & Co Kg, 4050 Moenchengladbach Vorrichtung zum Erzeugen eines gleichmäßigen, kontinuierlichen Faserbandes
US4199844A (en) * 1978-04-25 1980-04-29 Platt Saco Lowell Limited Method and means for regulating sliver draft uniformity
US4267620A (en) * 1978-08-17 1981-05-19 Special Instruments Laboratory, Inc. Method and apparatus for controlling textile working systems employing NMR detector
US4266324A (en) * 1978-12-27 1981-05-12 Kabushiki Kaisha Toyota Chuo Kenkyusho Silver weight unevenness correcting apparatus
FR2466526A1 (fr) * 1979-09-27 1981-04-10 Alsacienne Constr Meca Installation de regulation de la section de la meche de fibres sortant d'une machine d'etirage
US4302968A (en) * 1979-10-15 1981-12-01 Rieter Machine Works, Ltd. Method and apparatus for measuring the linear density of a travelling fiber sliver

Also Published As

Publication number Publication date
ATE6947T1 (de) 1984-04-15
IN154205B (zh) 1984-10-06
JPS56148920A (en) 1981-11-18
EP0038927B1 (de) 1984-04-04
DE3162923D1 (en) 1984-05-10
ES501316A0 (es) 1982-12-01
US4369550A (en) 1983-01-25
BR8101861A (pt) 1981-09-29
EP0038927A1 (de) 1981-11-04
HK60785A (en) 1985-08-23
JPH0217649B2 (zh) 1990-04-23
ES8301507A1 (es) 1982-12-01

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